PERISTALTIC PUMP ASSEMBLIES, TUBING CASSETTES, AND SYSTEMS INCORPORATING SUCH PUMP ASSEMBLIES
First Claim
1. A peristaltic pump assembly comprising a rotor assembly having a plurality of rollers mounted in a rotatable housing in operable communication with a drive motor for rotating the rotor assembly;
- an occlusion bed slidably mounted in a spaced apart relationship to the rotor assembly and having a curved surface facing the rotor assembly that forms an occlusion surface for tubing retained in an occlusion pathway during operation of the peristaltic pump;
a pivoting or sliding door adjustable between an open condition providing access to the occlusion pathway and a closed condition in which access to the occlusion pathway is blocked;
wherein a linkage mechanism is provided that moves the occlusion bed in concert with the pivoting or sliding of the door.
5 Assignments
0 Petitions
Accused Products
Abstract
Peristaltic pump assemblies in which the closing and opening of a pivoting or sliding door is coordinated with movement of the occlusion bed toward and away from the rotor assembly to engage and disengage tubing within the occlusion pathway are disclosed. Linkage mechanisms provided by the interaction of cam surfaces with rollers, as well as bar linkage mechanisms, are disclosed. The linkage mechanism, in addition to providing precise displacement of the occlusion bed, may also provide an over-center feature that enhances safety and pump operation when the door is in a closed position. Latching mechanisms and sensors may be incorporated. Control consoles incorporating such peristaltic pump assemblies are described. Adaptive components such as tubing cassettes routing aspiration and/or infusion tubing in a predetermined configuration to mate with occlusion pathways in aspiration and/or infusion pump assemblies provided in various types of medical devices and control consoles are also provided.
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Citations
20 Claims
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1. A peristaltic pump assembly comprising a rotor assembly having a plurality of rollers mounted in a rotatable housing in operable communication with a drive motor for rotating the rotor assembly;
- an occlusion bed slidably mounted in a spaced apart relationship to the rotor assembly and having a curved surface facing the rotor assembly that forms an occlusion surface for tubing retained in an occlusion pathway during operation of the peristaltic pump;
a pivoting or sliding door adjustable between an open condition providing access to the occlusion pathway and a closed condition in which access to the occlusion pathway is blocked;
wherein a linkage mechanism is provided that moves the occlusion bed in concert with the pivoting or sliding of the door. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
- an occlusion bed slidably mounted in a spaced apart relationship to the rotor assembly and having a curved surface facing the rotor assembly that forms an occlusion surface for tubing retained in an occlusion pathway during operation of the peristaltic pump;
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20. An adaptive tubing cassette for use in connection with an interventional catheter assembly, comprising:
- a handle component having an interface region adapted to mount stably in a mating interface region of a control console; and
at least one preformed tubing section mounted to and extending from the handle component, the at least one preformed tubing section adapted to mount stably in a tubing receiving pathway provided in connection with the control console.
- a handle component having an interface region adapted to mount stably in a mating interface region of a control console; and
Specification